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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * befs.h4 *5 * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com>6 * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp)7 */8 9#ifndef _LINUX_BEFS_H10#define _LINUX_BEFS_H11 12#include "befs_fs_types.h"13 14/* used in debug.c */15#define BEFS_VERSION "0.9.3"16 17 18typedef u64 befs_blocknr_t;19/*20 * BeFS in memory structures21 */22 23struct befs_mount_options {24 kgid_t gid;25 kuid_t uid;26 int use_gid;27 int use_uid;28 int debug;29 char *iocharset;30};31 32struct befs_sb_info {33 u32 magic1;34 u32 block_size;35 u32 block_shift;36 int byte_order;37 befs_off_t num_blocks;38 befs_off_t used_blocks;39 u32 inode_size;40 u32 magic2;41 42 /* Allocation group information */43 u32 blocks_per_ag;44 u32 ag_shift;45 u32 num_ags;46 47 /* State of the superblock */48 u32 flags;49 50 /* Journal log entry */51 befs_block_run log_blocks;52 befs_off_t log_start;53 befs_off_t log_end;54 55 befs_inode_addr root_dir;56 befs_inode_addr indices;57 u32 magic3;58 59 struct befs_mount_options mount_opts;60 struct nls_table *nls;61};62 63struct befs_inode_info {64 u32 i_flags;65 u32 i_type;66 67 befs_inode_addr i_inode_num;68 befs_inode_addr i_parent;69 befs_inode_addr i_attribute;70 71 union {72 befs_data_stream ds;73 char symlink[BEFS_SYMLINK_LEN];74 } i_data;75 76 struct inode vfs_inode;77};78 79enum befs_err {80 BEFS_OK,81 BEFS_ERR,82 BEFS_BAD_INODE,83 BEFS_BT_END,84 BEFS_BT_EMPTY,85 BEFS_BT_MATCH,86 BEFS_BT_OVERFLOW,87 BEFS_BT_NOT_FOUND88};89 90 91/****************************/92/* debug.c */93__printf(2, 3)94void befs_error(const struct super_block *sb, const char *fmt, ...);95__printf(2, 3)96void befs_warning(const struct super_block *sb, const char *fmt, ...);97__printf(2, 3)98void befs_debug(const struct super_block *sb, const char *fmt, ...);99 100void befs_dump_super_block(const struct super_block *sb, befs_super_block *);101void befs_dump_inode(const struct super_block *sb, befs_inode *);102void befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super *);103void befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *);104/****************************/105 106 107/* Gets a pointer to the private portion of the super_block108 * structure from the public part109 */110static inline struct befs_sb_info *111BEFS_SB(const struct super_block *super)112{113 return (struct befs_sb_info *) super->s_fs_info;114}115 116static inline struct befs_inode_info *117BEFS_I(const struct inode *inode)118{119 return container_of(inode, struct befs_inode_info, vfs_inode);120}121 122static inline befs_blocknr_t123iaddr2blockno(struct super_block *sb, const befs_inode_addr *iaddr)124{125 return ((iaddr->allocation_group << BEFS_SB(sb)->ag_shift) +126 iaddr->start);127}128 129static inline befs_inode_addr130blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno)131{132 befs_inode_addr iaddr;133 134 iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift;135 iaddr.start =136 blockno - (iaddr.allocation_group << BEFS_SB(sb)->ag_shift);137 iaddr.len = 1;138 139 return iaddr;140}141 142static inline unsigned int143befs_iaddrs_per_block(struct super_block *sb)144{145 return BEFS_SB(sb)->block_size / sizeof(befs_disk_inode_addr);146}147 148#include "endian.h"149 150#endif /* _LINUX_BEFS_H */151